CN101045652A - Comprehensive treatment method of bio-pollutant - Google Patents
Comprehensive treatment method of bio-pollutant Download PDFInfo
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- CN101045652A CN101045652A CNA2006100939299A CN200610093929A CN101045652A CN 101045652 A CN101045652 A CN 101045652A CN A2006100939299 A CNA2006100939299 A CN A2006100939299A CN 200610093929 A CN200610093929 A CN 200610093929A CN 101045652 A CN101045652 A CN 101045652A
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- biological pollutant
- oil slick
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
A comprehensive treating method for the biologically polluted substance includes such steps as removing silt deposit and floating oil and dregs, ageing, measuring the content of chemically polluted substance, mixing with broken plants, anaerobic fermenting, sterilizing, inoculating marsh gas bacteria and fermenting bacteria, fermenting, sterilizing, and filtering to obtain coarse fibers used for making paper or as the soil-improving fertilizer, the suspended solid used to prepare forage or organic fertilizer and the liquid used as basic liquid fertilizer.
Description
Technical field
The present invention relates to field of environment protection, specifically relate to a kind of integrated conduct method of biotic pollution material.
Background technology
The foul water system in the present city of China, all are biological pollutants such as the discarded water of the discarded water that makes city food-processing industry and catering trade, resident living, ight soil by directly entering near the river the city behind the heavy full septic tank, can contain some chemical pollutants inevitably in these biological pollutants in addition, cause the havoc of river water, become big public hazards.Because this Technological Exploitation Investment is little, effective, the comprehensive cities and towns biological pollutant treatment technology of high efficiency is the focus of extensively being paid close attention at present.
Biological pollutants such as present domestic processing city domestic sewage have dual mode: a kind of is buried automatic biochemical facture, another kind is to adopt the biological degradation digestion method, it is slow all to have contaminant degradation, be easy to generate shortcomings such as diffustivity pollution rainy season, the then aerobic aeration methods that adopt of developed country more.Above method all exists the investment of capital construction and equipment huge, and the expense of day-to-day operation and overhead charges height make pollution treatment enterprise be difficult to going concern; The not fine yet solution of solid-state surplus dirt still has a certain amount of disposal of pollutants, even the situation that pollution treatment enterprise has become new source of pollution again occurred; Destroy a large amount of effective ecological resources, caused shortcomings such as very big waste.
Solid sediment (mud) is the concomitant product in the sewage treatment process.It has water ratio height, perishable, foul smelling, contains heavy metal and characteristics such as a large amount of parasitic ovum and pathogenic micro-organism.Along with popularizing and the raising of wastewater treatment rate of sewage treatment facility, the sludge quantity that produces during sewage disposal also will increase greatly.In sludge treatment, mummification can be handled mud fairly largely, and resource obtains the part utilization, and domestic existing city attempts adopting, but the drying process energy consumption is big, the expense height; Burning is safer and treatment process completely, but investment is high, and energy consumption is big, and working cost is high, and burning has peculiar smell; Anaerobic digestion is that present large-scale wastewater treatment plant adopts more mud stable treatment technique, but also exist the construction period long, investment cost is high, complex process, be not suitable for the middle and small scale urban wastewater treatment firm and adopt, and also have the problem of a ultimate disposal through the mud of anaerobic digestion; Lime stabilization is handled simply, facility investment is economized, but because the mud after handling contains large quantities of lime, and the pH value is higher, causes difficulty for the utilization of final soil.
Disclose the disposal of resources method of a kind of domestic waste and waste water in Chinese invention patent 02133320.3, it is handled rare, dense sanitary wastewater respectively, and discharging has increased treatment process respectively; And other builds rare sanitary wastewater discharge tube and all transform septic tank in the city as methane-generating pit also expense costliness, also has certain potential safety hazard simultaneously.
Simultaneously, the pollution treatment enterprise of China is at present all by government's grant with collect sewage disposal expense to blowdown enterprise and keep operation, and it is lossing state that a lot of enterprises are in operation, hard to carry on.Such as, once reported national departments concerned investigate secretly discovery along municipal sewage plant, Huaihe River operation ratio less than 50%.
As from the foregoing, investment is big, power consumption is high, of poor benefits, program is complicated is the common drawback of biological pollutant treatment technology such as current urban life waste water.China is developing country, and most small and medium-sized cities electric power, fund are nervous relatively to be lacked, and the municipal pollution material treatment process of highly energy-consuming, big investment is difficult to popularize in an all-round way to be used.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of integrated conduct method of investing the urban biology pollutent little, that power consumption is low, profitable, program is easy.
The integrated conduct method of urban biology pollutent provided by the present invention may further comprise the steps:
A, pending biological pollutant is removed sediment deposition thing and surperficial oil slick, scum silica frost, ageing is handled;
The content of the chemical pollutant of b, the pending biological pollutant of detection, be not higher than 0.06% by the chemical pollutant content in the 0.5 pending biological pollutant of adding doubly after adding crushed aggregate of plant and making the interpolation crushed aggregate of plant that is not less than pending biological pollutant gross weight, mix, anaerobically fermenting to solid suspension rate of decomposition reaches more than the 65%w/w, carries out germicidal treatment then;
C, with step b product implant the biogas bacterium, zymophyte is fermented, and ferments to solid suspension rate of decomposition 86%w/w, chemical pollutant content is reduced to below 0.004%, carries out germicidal treatment then;
D, step c product is filtered, the thick fine thing that leaches is as paper making raw material or as the fertile raw material of loosing soil improvement; The gained solid suspension adds the fresh plant particle and carries out behind the aerobic fermentation as the mollusk breeding feed or make biological organic composite mixing fertilizer; Gained liquid object product interpolation nitrogen, phosphorus, potassium are made as liquid base manure.
Wherein, the edible oil slick in silt particle throw out described in the step a and the surperficial oil slick reclaims and is modulated to compost; Behind the not edible oil slick and scum silica frost drying in the oil slick of surface, be compressed to fuel brick.
Wherein, the anaerobically fermenting described in the step b is to carry out in the fermenting container with automatic constant-temperature fermentation unit, steam maturation process device, air pressure safe auto-control device, exhaust gas purification treatment unit, transmission pipeline interface, stirring whipping appts and feedback cyclic processing device.
Wherein, the germicidal treatment described in the step b is to adopt that steam carries out more than 85 ℃.
Wherein, the germicidal treatment described in the step c is with microwave disinfection or steam sterilization.
Wherein, described in the step c in fermentation be reciprocating type fermentation.
The purpose of mud hybrid modulation is to adjust the moisture and the carbon-nitrogen ratio of compost among the inventive method step a, and strengthens porousness, and the contact area of increase and air helps aerobic fermentation.Can manually grow simultaneously into aerobic bacterial classification or microbial inoculum (as the VT bacterium etc.) promoting that fermenting process carries out fast, and suppress the generation of foul smell.In composting process, organism begins fermentation in the material under the aerobic microbiological effect, at first is that easy decomposed substance decomposes, and produces CO
2And H
2O produces heat simultaneously temperature is risen.Nutritive ingredients such as the carbon in the organism of microorganism absorption at this moment, nitrogen in synthetic cell matter and when carrying out self-reproduction, also can produce heat, and fermentation energy carries out high efficiency decomposition.In general the minimum 7 days medial temperature of process remains on the fermentation more than 55 ℃, most of organism is degraded, because the accumulation of organic minimizing and meta-bolites, microbial growth and organic decomposition rate slow down, leavening temperature begins to reduce, and this moment is organic basicly stable.The supply situation of oxygen and fermentation insulation degree have a significant impact the temperature rising of compost in the composting process, and fermentation period is about 12～15 days, and last product should satisfy the requirement of GB4284-84 " pollutent control criterion in the agricultural mud ".If swill pollution by oil material is more in the pollutent, can select one or more bacterial classifications such as sporeformer, actinomycetes, milk-acid bacteria for use, animal and plant grease in the organic pollutant is handled.
Inorganic oil slick and scum silica frost in the surperficial oil slick described in the inventive method step a dewater earlier, are made as the fuel brick of different shape then according to the service condition briquetting, can be used as boiler oil or other fuel and use.
The inventive method step b is that the product with step a carries out closed anaerobically fermenting in the controlling fermentation device, its condition and general biogas fermentation are distinguished to some extent, employing adds thermomaturation, mechanical refinement, mixes, controls the scum silica frost come-up, improve the aerogenesis condition, the artificial saprophytic property of the anaerobism bacterial classification that produces biogas of implanting, as in biogas bacterium, the yeast one or more to the Combination biological substance carry out acid become, softening, decompose, main by product is methane (CH
4) and carbonic acid gas (CO
2).And this step gas generation process and gas production rate carried out artificial regulatory, fully effectively to utilize resource.The gained by product can be used as the energy and uses.
The inventive method step c is that product with step b is in fermentation unit, select one or more aerobic saprophytic property strain fermentation bacterium for use, such as nitrobacteria, nitrite bacteria diastatic fermentation, Ammonifying bacteria, nitrogen-fixing bacteria, cellulose-decomposing bacterium etc., to the fibre object in the biological material decompose, sudden and violent gas oxidation, corruption.Sudden and violent gas oxidation wherein is meant oxygen-containing gass such as injecting air in the sealing capacitance device or is exposed to air that the biological material that makes anaerobically fermenting fail to decompose continues to decompose by aerobic fermentation.Corruption wherein is meant and utilizes microorganism that the animal and plant residue is resolved into liquid process.
Biological pollutant described in the present invention mainly is meant: resident living is discarded the discarded water and the waste material of water, ight soil, swill, outcast animal and plant residue, food-processing industry and catering trade.And in biological pollutant, can contain some chemical pollutants inevitably, these chemical pollutants are mainly from sanitising agents such as washing powder, liquid detergents, the waste water that industries such as automobile repair are discharged, to other chemical pollutants that abandon, this makes that the processing of biological pollutant is more difficult in people's daily life.
Ageing described in the present invention is meant: refer to the concentrated back of biological pollutant spontaneous decomposing oxidation process in depositing process here.
Reciprocating type fermentation described in the present invention is meant: after raw material is machined to terminal processing and fermentation operation and finishes from initial fermentation, do not reach fully yet and produce the necessary technical indicator of fermentation processing, and being returned prime again, raw material carries out batch mixing fermentation processing again, to reach the process of fermented quality standard-required.The fermentation unit that can carry out reciprocating type fermenting process of the present invention is reciprocating type fermentation unit.
Change among the present invention is dirty than being meant: chemical pollutant accounts for the ratio of inorganic chemistry material summation in the biological pollutant.
The detection method of all contaminations matter can be with reference to by the second editing cubicle editor of China Standard Press, and the various standard methods of putting down in writing in " Environment Protect in China standard compilation-waste gas waste water and dregs analytical procedure " that China Standard Press publishes carry out.
The inventive method can be selected the material of some energy long run supplies and abundant amount with suiting measures to local conditions in implementation process, can make full use of the local abundant agro-farming plant husbandry and the organic solid waste of aquaculture and do the auxiliary material resource, such as selecting straw powder for use, rice husk, wood chip, the mushroom slag, plant refuses such as bagasse simply shred processing with conventional stock cutter or pulverizer or with Herba Eichhorniae, the mountain grass, pericarp, useless dish leaf, materials such as vinasse are simply processed and are obtained employed crushed aggregate of plant in the inventive method, siccative, bright material or both mix all can, bright material is good especially, and when using siccative, then should add an amount of water.The amount of the crushed aggregate of plant that adds in the inventive method step b is at least more than 0.5 times of pending biological pollutant weight, if the inorganic pollutant content in the pending biological pollutant is higher, the inorganic pollutant content that then should always be added into is not wherein handled to not being higher than 0.06%.
Each step all can be used existing plant and instrument among the present invention, perhaps the existing installation of this area is simply transformed according to practical situation.Such as, the fermenting container of step b can be built than the used fermenting container height of step c according to physical features, to save the energy consumption that product transmits.Also can be designed to annular horizontal bilayer device in the plains region, its principle of work is the same substantially with the former (vertical).For better implement the present invention, store and fermentation equipment in should the design and installation routine the real-time detector device, to monitor the progress of each step.
The beneficial effect of the inventive method is: the integrated conduct method of urban biology pollutent provided by the invention can be realized the concentrated strange land joint disposal of urban biology pollutent, carries out stifled source and cuts dirt, purifies cities and towns and peripheral water surrounding rapidly; Adopt the mode of closed ecological pollution treatment, the disposal of pollutants in the governance process can also make the animal and plant waste be handled accordingly near zero release when administering biological pollutant; Realize the holomorphosis utilization of biological resource, helped on this method basis, setting up the ecological agriculture and plant aquaculture, increased income for pollution treatment enterprise.The inventive method can also produce considerable economic in the ecological pollution treatment that realizes polluting near zero release, improvement enterprise is reached self-sufficiency, broken away from the state of every year keeping enterprise operation by governmental investment, its useful effectiveness can be brought into play for a long time, good economic benefits and social benefit can be produced.
Embodiment
Below by to the description of the more excellent embodiment of the present invention explanation but do not limit the present invention.
Embodiment one uses the inventive method to handle biological pollutant
Raw material is prepared: pending pollutent is the mixture of interior ight soil of Residential areas septic tank and sanitary sewage, and chemical substances such as sodium alkyl benzene sulfonate, phosphorus, aluminium, alkali record total amount before experiment be 0.0018%.The vegetable material of adding is the particle and the slurries of Herba Eichhorniae, useless dish leaf, mountain grass.
Plant and instrument: volume is the spherical fermentor tanks of 2 cubical glass reinforced plastic, venting port, liquid feed pipeline, solid-state feed pipe, liquid discharge pipe, solid-state discharge pipe is arranged and stir turn-down rig, imbeds ground about 3/4.
The GC-2000A gas chromatograph.
Strainer, air pump, fuel brick briquetting device, temperature-control device, routine instrument devices such as steam sterilization device.
Experimentation:
1, the biological pollutant that will handle carries out ageing and handles after removing the bigger scum silica frost of sediment deposition thing and surperficial oil slick, volume.
2, the weight of 1 products therefrom is added 0.5 times Herba Eichhorniae, the particle and the slurries of give up dish leaf, mountain grass etc. set by step.Use the spherical fermentor tank of two glass reinforced plastic of A, B, feed 1.2 cubes respectively.Carry out anaerobically fermenting then.
The A jar carries out mechanical refinement, stirring control scum silica frost come-up, automatic constant-temperature, manually grows into processing such as biogas bacterium and zymophytes in anaerobic fermentation process.
The B jar in contrast, anaerobic fermentation process carries out routinely.
Experimental result sees Table one
Table one anaerobically fermenting experimental result
| The A jar | The B jar | |
| Temperature | Constant temperature 36-39 ℃ (cloudy day) | Natural temperature 9-17 ℃ (cloudy day) |
| The initial aerogenesis time | The 4th day | The 8th day |
| Output time | 18 days (output is stable) | 7 days (output is unstable) |
| The aerogenesis quality | Energy is aerogenesis continuously, and the flame color and luster is normal | Continuity is bad, and the quick-fried situation of going out is arranged |
| Reactant pH | (6.5 natural pond liquid is light yellow green) | 4 (the basic end of color and luster becomes) |
| The solids rate of decomposition | 87％ | 21％ |
| Chemical residual amount after fermentation is finished | 0.00023％ | 0.0014％ |
Annotate: biogas takes place and the testing tool of output is to pick out 3 No. 6 injection syringe needles on the tank body, calculates by combustion time.
3, after fermentation is finished product in the A jar is removed, extracted the ventilation to two fermentor tanks of C, D of the even five equilibrium of liquid object and carry out aerobic fermentation.
Wherein raw material has carried out manually having implanted the aerobic fermentation bacterial classification after the cooling about wet sterilization maturation process to 100 ℃ before fermentation in the C jar.
Experimental result sees Table two:
Table two aerobic fermentation experimental result
| The C jar | The D jar | |
| Thermostat temperature | 32-35℃ | Natural temperature 8-15 ℃ |
| Fermentation time | 6 days | 6 days |
| Grow into bacterial classification | The aerobic fermentation bacterium | Spontaneous fermentation |
| The solids rate of decomposition | 96％ | 28％ |
| Chemical residual amount after fermentation is finished | 0.00004％ | 0.0009％ |
4, modulation compost
Silt particle throw out that filtered and recycled in the present embodiment step 1 is obtained and the edible oil slick in the surperficial oil slick, and the throw out after the fermentative processing merges as the synthetic major ingredient of compost, accounts for 60%; Addition material is corn tangerine bar powder, powdered rice hulls, swill etc., accounts for 40%; Modulating device is ball-type fermentor tank E.Raw material mixed mix all, manually implant composite zymocyte, the compost center as getting warm spot, is provided with the steam scatterer and keeps automatic constant-temperature in the spherical tank, utilize gas transmission sheet evenly updraft (the results are shown in Table three) again bottom the compost.
Table three compost modulation result
| Thermostat temperature | 55-70℃ |
| Water ratio | 45％-60％ |
| Carbon/nitrogen ratio | 25-35 |
| Grow into bacterial classification | Composite enzyme bacterium |
| Fermentation time | 26 days |
| Sealing is deposited | 22 days |
| Fermentation transforms | 97% (the smelly and tart flavour of no excrement) |
| The pH value | 7 |
| Chemical residual | Do not measure |
The composite enzyme bacterium of implantation wherein comprises milk-acid bacteria, yeast, actinomycetes, light compositing bacterium, thread fungus.
Wherein fermentation transforms the degree of humification that the enzyme that refers to microorganism improves organic composition, and activated substrate also improves the biomineralization degree of compost.The pH value of compost changes with temperature in time, can be used as the reference of examination organic matter decomposition situation.
5, the making of fuel
Not edible oil slick in the surperficial oil slick that reclaims in the present embodiment step 1 done with suppressing obtaining 36 blocks of honeycomb type fuel bricks with the scum silica frost filter, combustion experiment shows that burning is comparatively abundant.
6, breeding earthworm:
After the particle that the solid suspension that present embodiment step 3 product is filtered gained adds fresh water cucurbit, useless dish leaf, mountain grass etc. carried out once more aerobic fermentation, as the vermiculture feed, the result showed that earthworm grows fine, and does not have bad situation appearance.
7, present embodiment step 3 product filtration back gained liquid object interpolation nitrogen, phosphorus, potassium are made as liquid base manure respectively to 6%w/w, directly are exerted into the farmland.
Embodiment two uses the inventive method to handle biological pollutant
Raw material is prepared: pending pollutent is the mixture of ight soil in the septic tank of Residential areas, sanitary sewage, remanufactured-vehicle business sewage.The vegetable material of adding is the particle and the slurries of Herba Eichhorniae, useless dish leaf, mountain grass.
Plant and instrument: volume is the spherical fermentor tanks of 2 cubical glass reinforced plastic, venting port, liquid feed pipeline, solid-state feed pipe, liquid discharge pipe, solid-state discharge pipe is arranged and stir turn-down rig, imbeds ground about 3/4.
The GC-2000A gas chromatograph.
Strainer, air pump, fuel brick briquetting device, temperature-control device, routine instrument devices such as steam sterilization device.
Experimentation:
1, the biological pollutant that will handle carries out ageing and handles after removing the bigger scum silica frost of sediment deposition thing and surperficial oil slick, volume.
2, after testing, chemical substance total contents such as sodium alkyl benzene sulfonate, phosphorus, aluminium, alkali are 0.12% in step 1 products therefrom.Add the particle and the slurries of 1.2 times Herba Eichhorniae, useless dish leaf, mountain grass etc. by its weight.Use the spherical fermentor tank of two glass reinforced plastic of A, B, feed 1.2 cubes respectively, carry out anaerobically fermenting then.
The A jar carries out mechanical refinement, stirring control scum silica frost come-up, automatic constant-temperature, manually grows into processing such as biogas bacterium and zymophytes in anaerobic fermentation process.
The B jar in contrast, anaerobic fermentation process carries out routinely.
Experimental result sees Table four:
Table four anaerobically fermenting experimental result
| The A jar | The B jar | |
| Temperature | Constant temperature 35-38 ℃ | Natural temperature 11-18 ℃ |
| The initial aerogenesis time | The 5th day | The 9th day |
| Output time | 15 days (output is stable) | 5 days (output is unstable) |
| The aerogenesis quality | Energy is aerogenesis continuously, and the flame color and luster is normal | Continuity is bad, and the quick-fried situation of going out is arranged |
| Reactant pH | 6 (natural pond liquid is light yellow green) | 4 (the basic end of color and luster becomes) |
| The solids rate of decomposition | 86％ | 23％ |
| Chemical residual amount after fermentation is finished | 0.00047％ | 0.0023％ |
Annotate: biogas takes place and the testing tool of output is to pick out 3 No. 6 injection syringe needles on the tank body, calculates by combustion time.
3, after fermentation is finished product in the A jar is removed, extracted the ventilation to two fermentor tanks of C, D of the even five equilibrium of liquid object and carry out aerobic fermentation.
Wherein raw material has carried out manually having implanted aerobic fermentation strain fermentation (experimental result sees Table five) after the cooling about wet sterilization maturation process to 100 ℃ before fermentation in the C jar.
Table five aerobic fermentation experimental result
| The C jar | The D jar | |
| Thermostat temperature | 34-42℃ | Natural temperature 9-15 ℃ |
| Fermentation time | 6 days | 6 days |
| Grow into bacterial classification | The aerobic fermentation bacterium | Spontaneous fermentation |
| The solids rate of decomposition | 94％ | 26％ |
| Chemical residual amount after fermentation is finished | Do not measure | 0.00182％ |
4, modulation compost
Silt particle throw out that filtered and recycled in the present embodiment step 1 is obtained and the edible oil slick in the surperficial oil slick, and the throw out after the fermentative processing merges as the synthetic major ingredient of compost, accounts for 55%; Addition material is corn tangerine bar powder, powdered rice hulls, swill etc., accounts for 45%; Modulating device is ball-type fermentor tank E.Raw material mixed mix all, manually implant composite zymocyte, the compost center as getting warm spot, is provided with the steam scatterer and keeps automatic constant-temperature in the spherical tank, utilize gas transmission sheet evenly updraft (the results are shown in Table six) again bottom the compost.
Table six compost modulation result
| Thermostat temperature | 55-70℃ |
| Water ratio | 43％-61％ |
| Carbon/nitrogen ratio | 25-35 |
| Grow into bacterial classification | Composite enzyme bacterium |
| Fermentation time | 24 days |
| Sealing is deposited | 22 days |
| Fermentation transforms | 97% (the smelly and tart flavour of no excrement) |
| The pH value | 7.5 |
| Chemical residual | Do not measure |
The composite enzyme bacterium of implantation wherein comprises milk-acid bacteria, yeast, actinomycetes, light compositing bacterium, thread fungus.
Wherein fermentation transforms the degree of humification that the enzyme that refers to microorganism improves organic composition, and activated substrate also improves the biomineralization degree of compost.The pH value of compost changes with temperature in time, can be used as the reference of examination organic matter decomposition situation.
5, the making of fuel
Not edible oil slick in the surperficial oil slick that reclaims in the present embodiment step 1 done with suppressing obtaining 40 blocks of honeycomb type fuel bricks with the scum silica frost filter, combustion experiment shows that burning is comparatively abundant.
6, breeding earthworm:
After the particle that the solid suspension that present embodiment step 3 product is filtered gained adds fresh water cucurbit, useless dish leaf, mountain grass etc. carried out once more aerobic fermentation, as the vermiculture feed, the result showed that earthworm grows fine, and does not have bad situation appearance.
7, present embodiment step 3 product filtration back gained liquid object interpolation nitrogen, phosphorus, potassium are made as liquid base manure respectively to 6%w/w, directly are exerted into the farmland.
Implement; The result of example one and embodiment two shows that the inventive method all can effectively be handled cities and towns biological pollutant thing, and is converted into useful products; Smokeless in the entire treatment process, dust, sewage, gas with foreign flavor discharge with residue.Improved anaerobic ferment process can be obtained better effect simultaneously, carries out the steam sterilization maturation process and can effectively raise the efficiency before aerobic fermentation.And the temperature of each step can suitably reduce when scale operation, controls to 25-39 ℃ such as the temperature of fermenting.
Embodiment three uses the inventive method in samll cities and towns or community
Be that samll cities and towns about 60,000 people use method of the present invention
One, blowdown flow rate measuring and calculating
City resident population about 60,000 county town, agriculture county estimates that its biological pollutant drainage total amount is about 240 ton per days; 7200 tons/month; 86400 tons/year.Wherein the solid muck is about 50 ton per days; About 95 ton per days of liquid manure; All the other are the discarded water of catering trade, resident living.
Two, equipment used and auxiliary facility
The factory site selects for use two mountains to press from both sides a ditch step landform, builds following facility
1, cylindrical 1.8000 cubes of methane-generating pits are 8; (wherein deposit the pond as raw material for 2,4 as the fermentation work pools, 2 separate to deposit the pond) as work in-process
2, allied industry alcohol production workshop, and the poor jar of depositing of material.
3, animal provenance culture zone related facility.
4, no dust is done one of vegetable material pulverizing, fresh plant material slurrying production plant.
5, the dirt that living quarters, Office Area, laboratory, product storehouse, garage etc. are necessary is handled the infrastructure of unit.
Mechanical means:
1, liquid transport (tailor-made multi-functional casing); Engineering is from oblique car.
2, work pool stirrer, boiler, nodulizer, drying plant, assay device, automated bag installation, pulverizer etc.
Three, treating processes
Each septic tank outlet in the sealing cities and towns, thoroughly cut off source of pollution, regularly all biological pollutants are concentrated in the treatment plant, carry out according to the following steps: a, will handle biological pollutant ageing in disposing the pond, disgorging and surperficial oil slick, scum silica frost are modulated to compost with the organic oil slick recovery in silt particle throw out and the surperficial oil slick; The inorganic oil slick and the scum silica frost of surface oil slick are made as fuel; The content of chemical pollutant is measured in b, sampling, and the content of pressing chemical pollutant adds crushed aggregate of plant, adjusts below the chemical pollutant concentration to 0.06%; C, about 28 ℃ ferment to solid matter rate of decomposition 65%w/w, carry out microwave disinfection then and handle; Add aerobic bacteria after d, the germicidal treatment and carry out the fermentation decomposition second time, leavening temperature is controlled at 27-29 ℃, ferments to solid matter rate of decomposition 86%w/w, and chemical pollutant content is reduced to below 0.004%, product is carried out microwave disinfection handle; E, filtration, the thick fine thing that leaches be as paper making raw material, the gained liquid object add nitrogen, phosphorus, potassium respectively to 6%w/w as liquid base manure (quality standard sees Table seven).
The liquid base manure quality standard of table seven
| Project | Organic | The N.P.K total amount | Moisture | pH | Living bacteria count |
| Index | ≥35％ | ≥15％ | ≤20％ | 6.0-7.5 | 〉=0.2 hundred million/gram |
Four, the follow-up utilization of product
1, the liquid fertilizer after modified is by sending into the farmland second ploughing season.
2, sedimentary biological slag base-material carries out the plant material interpolation, enters 2 fermentations, carries out the industrial alcohol fermented extracted again, produces about 500 tons per year.The poor animal cultivation district that enters of ethanol produces high-quality crude product animal proteinum 200-1000 ton per year.
3, sedimentary biological slag work in-process are as feedstock production granular organic fertilizer, composite fertilizer's finished product.(the agro-farming soil property of border use is promptly surveyed native modified by prior art allotment content of mineral substances factually.)
The biogas that fermentation is produced is used for the energy of production treating processes and is close to Residential areas life fuel.
4, regularly detect the physical and chemical index at environmental ambient air and water source, guarantee that Environmental indicators reaches national relevant regulations.
Embodiment four uses the inventive method in bigger cities and towns
The inventive method is used in cities and towns about 500,000 people:
One, blowdown flow rate measuring and calculating
The city resident population about 500,000, estimate that its biological pollutant drainage total amount is about 2000 ton per days.Wherein the solid muck is about 500 ton per days; About 950 ton per days of liquid manure; All the other are the discarded water of catering trade, resident living.
Two, equipment used and auxiliary facility
Build following facility factory building facility:
1, cylindrical 3.0000 cubes of methane-generating pits are 16; (raw material is deposited 4 in pond, and 8 of the fermentation vats of wherein working, work in-process separate deposits 4 in pond)
2, allied industry alcohol production workshop, and the poor jar of depositing of material.
3, animal provenance culture zone related facility.
4, totally-enclosed plant is pulverized one of production plant.
1, buildings such as living quarters, Office Area, laboratory, product storehouse, garage.
2,120,000 tons of organic fertilizer of newly-built annual output, compound manure factory are one.
Mechanical means:
2, liquid transport (tailor-made multi-functional casing); Engineering dump truck.
2, work pool stirrer, boiler, nodulizer, dryer, assay device, automated bag installation, pulverizer etc.
Three, treating processes
Seal each septic tank outlet, thoroughly cut off source of pollution, regularly all biological pollutants are concentrated in the treatment plant, carry out according to the following steps: a, will handle biological pollutant ageing in disposing the pond, remove silt particle throw out and surperficial oil slick, scum silica frost, the organic oil slick in solid sediment and the surperficial oil slick is reclaimed be modulated to compost; The inorganic oil slick and the scum silica frost of surface oil slick are made as fuel; B, the dirty ratio of sampling mensurationization add plant piece material by changing dirty ratio, below the dirty specific concentration to 0.06% of adjustmentization; C, 27-30 ℃ of sealing fermentation carried out microwave disinfection then and handled to more than the biological slag rate of decomposition 65%w/w; Add aerobic bacteria after d, the germicidal treatment and carry out the fermentation decomposition second time, leavening temperature is controlled at 29-31 ℃, and fermentation decomposes to more than the solid matter rate of decomposition 86%w/w, and change is dirty than reducing to below 0.004%, product is carried out microwave disinfection handle; E, filtration, the thick fine thing that leaches be as paper making raw material, the gained liquid object add nitrogen, phosphorus, potassium respectively to 6%w/w as liquid base manure (quality standard sees Table seven).
Four, the follow-up utilization of product
1, the liquid fertilizer after modified is by sending into the farmland second ploughing season.
2, sedimentary biological slag base-material carries out the raw material interpolation, enters 2 fermentations, carries out industrial alcohol again and extracts, and produces about 5000 tons per year.Ethanol is poor to enter the animal cultivation district as fodder additives, produces high-quality crude product animal proteinum 2000-10000 ton per year.
3, sedimentary biological slag base-material is as feedstock production granular organic fertilizer, composite fertilizer's finished product.(the agro-farming soil property of border use is by prior art allotment content of mineral substances factually)
4, the biogas that ferments and produced is used for the energy of production treating processes and is close to Residential areas life fuel.
5, regularly detect the physical and chemical index at environmental ambient air and water source, guarantee that Environmental indicators reaches national relevant regulations.
The treatment process of biological pollutant of the present invention can effectively be handled cities and towns biological pollutant thing, and the every product of gained can both reach national every requirement, has effectively reduced the pollution to environment.Biological pollutant is converted to useful products after present method is handled; Can produce a large amount of biogas in the biological pollutant treating processes, this by product biogas can be used for the required energy of intensification, sterilization, slaking of native system device processing again; Smokeless in the entire treatment process, dust, sewage, gas with foreign flavor discharge with residue.This comprehensive innoxious use to biological pollutant can effectively drive the green ecological industry, reduces the industry cost, brings into play and make good use of limited land resources, and change rubbish is the high-quality green resource.Can produce huge economic benefit and social benefit.
Above detailed description of the present invention does not limit the present invention, those skilled in the art can make various changes or distortion according to the present invention, such as be can be according to the size of the urban biology total amount of pollutant, change the size and the number of combinations of treatment system device, can reach effective result, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (6)
1, a kind of integrated conduct method of biological pollutant may further comprise the steps:
A, pending biological pollutant is removed sediment deposition thing and surperficial oil slick, scum silica frost, ageing is handled;
The content of the chemical pollutant of b, the pending biological pollutant of detection, be not higher than 0.06% by the chemical pollutant content in the 0.5 pending biological pollutant of adding doubly after adding crushed aggregate of plant and making the interpolation crushed aggregate of plant that is not less than pending biological pollutant gross weight, mix, anaerobically fermenting to solid suspension rate of decomposition reaches more than the 65%w/w, carries out germicidal treatment then;
C, with step b product implant the biogas bacterium, zymophyte is fermented, and ferments to solid suspension rate of decomposition 86%w/w, chemical pollutant content is reduced to below 0.004%, carries out germicidal treatment then;
D, step c product is filtered, the thick fine thing that leaches is as paper making raw material or as the fertile raw material of loosing soil improvement; The gained solid suspension adds the fresh plant particle and carries out behind the aerobic fermentation as the mollusk breeding feed or make biological organic composite mixing fertilizer; Gained liquid object product interpolation nitrogen, phosphorus, potassium are made as liquid base manure.
2, the integrated conduct method of biological pollutant according to claim 1 is characterized in that the recovery of the edible oil slick in silt particle throw out described in the step a and the surperficial oil slick is modulated to compost; Behind the not edible oil slick and scum silica frost drying in the oil slick of surface, be compressed to fuel brick.
3, the integrated conduct method of biological pollutant according to claim 1 is characterized in that: the described anaerobically fermenting of step b is to carry out in the fermenting container with automatic constant-temperature fermentation unit, steam maturation process device, air pressure safe auto-control device, exhaust gas purification treatment unit, transmission pipeline interface, stirring whipping appts and feedback cyclic processing device.
4, the integrated conduct method of biological pollutant according to claim 1 is characterized in that: the described germicidal treatment of step b is to adopt that steam carries out more than 85 ℃.
5, the integrated conduct method of biological pollutant according to claim 1 is characterized in that: the described germicidal treatment of step c is with microwave disinfection or steam sterilization.
6, the integrated conduct method of biological pollutant according to claim 1 is characterized in that the fermentation described in step b or the c is reciprocating type fermentation.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102476959A (en) * | 2010-11-30 | 2012-05-30 | 中国环境科学研究院 | Anaerobic quick start and anaerobic-aerobic integrated fermentation method under low temperature condition |
| CN104973744A (en) * | 2014-04-14 | 2015-10-14 | 大冶市三禾生物环保肥料有限公司 | Bio-organic fertilizer preparation through extraction of biogas with slurry and then fermentation |
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| CN108529748A (en) * | 2018-04-25 | 2018-09-14 | 浙江工业大学膜分离与水处理协同创新中心湖州研究院 | Synchronous nitration and denitrification bioreactor |
| CN108546729A (en) * | 2018-05-22 | 2018-09-18 | 海南澄迈神州车用沼气有限公司 | A kind of method of anaerobic fermentation production biogas |
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| CN1060279A (en) * | 1990-09-29 | 1992-04-15 | 上海东海水产科技服务部 | Pig farm wastewater treatment and utilize technology |
| CN1142121C (en) * | 2001-09-20 | 2004-03-17 | 郭高友 | Technological process of producing high-quality organic fertilizer with domestic garbage |
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| CN102476959A (en) * | 2010-11-30 | 2012-05-30 | 中国环境科学研究院 | Anaerobic quick start and anaerobic-aerobic integrated fermentation method under low temperature condition |
| CN102476959B (en) * | 2010-11-30 | 2014-07-16 | 中国环境科学研究院 | Anaerobic rapid starting and anaerobic-aerobic integrated fermentation method at low temperature |
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| CN108529748A (en) * | 2018-04-25 | 2018-09-14 | 浙江工业大学膜分离与水处理协同创新中心湖州研究院 | Synchronous nitration and denitrification bioreactor |
| CN108546729A (en) * | 2018-05-22 | 2018-09-18 | 海南澄迈神州车用沼气有限公司 | A kind of method of anaerobic fermentation production biogas |
| CN109356407A (en) * | 2018-11-14 | 2019-02-19 | 淮南菲利普斯采矿机械制造有限公司 | A kind of environment protection water closet collecting box and its application method for underground construction work |
| CN115237185A (en) * | 2022-09-02 | 2022-10-25 | 珠海格力电器股份有限公司 | Breeding house dust removal regulation and control method and device and dust removal system |
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